18801925

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1721}}^1$

素因数の和:1773

約数の個数: 24

約数和(自身を含む): 25623360

約数和(自身を除く): 6821435

約数列:

[1, 5, 19, 23, 25, 95, 115, 437, 475, 575, 1721, 2185, 8605, 10925, 32699, 39583, 43025, 163495, 197915, 752077, 817475, 989575, 3760385, 18801925]

約数ペア:

[(1, 18801925), (5, 3760385), (19, 989575), (23, 817475), (25, 752077), (95, 197915), (115, 163495), (437, 43025), (475, 39583), (575, 32699), (1721, 10925), (2185, 8605)]